Ubuntu
grub2 package

  1. Bug #1289977
  2. Comment #143

Comment 143 for bug 1289977

Revision history for this message
oldfred (oldfred) wrote :

Boot-Repair does the rename for 'buggy' UEFI. Many HP & Sonys only boot with one of the fixes as the UEFI is hard coded to only boot Windows. The rename then lets UEFI think it boots Windows efi file but really boots to grub menu. But then Windows entry in UEFI only boots grub.

bkpbootmgfw.efi
That file is the Windows boot file and grub or shim are renamed to bootmgfw.efi.
Best to undo that before anything else, either with Boot-Repair or manually as that confuses all the other issues:

Always say no until proven that you only can boot Windows entry from UEFI menu.
buggy-kernel detected. Do you want to activate [Backup and rename Windows EFI files]? yes (if any choice fails, please retry with the other)

To undo & to rename files to their original names, you just need to tick the "Restore EFI backups" option of Boot-Repair.